The formula for the volume V of a cylinder is V = πr^2h , where r is the radius of the base and h is the height of the cylinder. a. Solve the formula for h.
b. Find the height of a cylinder with a volume of 36π cm^3 and a base with a radius of
3 cm.

In a survey of 1015 adults, a polling agency asked, "when you retire, do you think you will have enough money to live comfortably or not. of the 1015 surveyed, 534 stated that they were worried about having enough money to live comfortably in retirement. construct a 90% confidence interval for the proportion of adults who are worried about having enough money to live comfortably in retirement.